Title: Long-term effectiveness and mediators of a need-supportive physical activity coaching among Flemish sedentary adults
Authors: Van Hoecke, Ann-Sophie ×
Delecluse, Christophe
Opdenacker, Joke
Lipkens, Luc
Martien, Sofie
Boen, Filip #
Issue Date: 2-Jul-2012
Publisher: Oxford University Press
Series Title: Health Promotion International vol:28 issue:3 pages:407-417
Abstract: This study examined the long-term and mediation effects of a need-supportive coaching program on physical activity. Sedentary employees (n = 92) of the university of Leuven received four months of physical activity coaching, based on the self-determination theory, by coaches with a bachelor’s degree in kinesiology who are specializing in health-related physical activity (n = 30). The program consisted of a limited number of individual contact moments (i.e. an intake session, three follow-up contacts and an outtake session), either face-to-face, by phone or by e-mail. Self-reported physical activity, social support, self-efficacy and autonomous motivation were assessed in the coaching group (n = 92) and a control group (n = 34) at three moments: before the intervention (i.e. pre-test), after the intervention (i.e. post-test) and one year after pre-test measurements (i.e. follow-up-test). Results revealed significant 3 (time) x 2 (group) interaction effects on strenuous and total physical activity. Moreover, whereas the control group remained stable from pre- to post-test, the coaching group increased significantly in moderate, strenuous and total physical activity. Additionally, the coaching group increased significantly in mild, moderate, strenuous and total physical activity from pre- to follow-up-test, whereas the control group did not change. Bootstrapping analyses indicated that self-efficacy and autonomous motivation significantly mediated the intervention effect on physical activity from pre- to post-test, while social support significantly mediated the long-term effect. This study provides evidence for the long-term effectiveness of a need-supportive physical activity program that might be efficient at community level.
ISSN: 0957-4824
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Policy in Sports & Physical Activity Research Group
Exercise Physiology Research Group
Departement Sociaal-agogisch Werk - UC Limburg
× corresponding author
# (joint) last author

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